Drinking water quality · 2024
· Verified
· PWSID AL0001005
What's in Mobile, AL tap water
1 contaminant in Mobile, AL's water sat at or above a federal limit, led by Hexachlorocyclopentadiene at 2.2x the limit.
- !1 contaminant at or above a federal limit — worst is Hexachlorocyclopentadiene at 2.2x
- !22 of 27 core regulated contaminants reported — 5 never appear in this report
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −26 contaminants at or above a federal limit
- −0 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −2 health-based violations resolved in the last 5 years
- −0 core regulated contaminants never reported (22/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- Hexachlorocyclopentadiene2.2× the federal limit0.11 mg/L · limit 0.05 mg/L
+77 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Chlorite | 0.78 mg/L | 1 mg/L |
| Asbestos | 5 MFL | 7 MFL |
| PFOA | 2 ng/L | 4 ng/L |
| Lead | 0.0065 mg/L | 0.015 mg/L |
| Fluoride | 0.84 mg/L | 4 mg/L |
| Copper | 0.0031–0.18 mg/L | 1.3 mg/L |
| Uranium | 4 ug/L | 30 ug/L |
| Combined Radium | 0.004–0.6308 pCi/L | 5 pCi/L |
| Gross Alpha | 0.425–1.25 pCi/L | 15 pCi/L |
| Nitrate | 0.18 mg/L | 10 mg/L |
| Barium | 0.034 mg/L | 2 mg/L |
| Chlorine | 50 ug/L | 4000 ug/L |
| Bromate | 6 | — |
| Bromodichloromethane | 1.9 | — |
| Chloroform | 4.3 | — |
| Chloride | 7.8 mg/L | — |
| Cyanide | Not detected ug/L | 200 ug/L |
| Nitrite | Not detected mg/L | 1 mg/L |
| Sulfate | 29.5 mg/L | — |
| Aluminum | 0.3 mg/L | — |
| Antimony | Not detected ug/L | 6 ug/L |
| Arsenic | Not detected ug/L | 10 ug/L |
| Beryllium | Not detected ug/L | 4 ug/L |
| Cadmium | Not detected ug/L | 5 ug/L |
| Calcium | 16.3 | — |
| Magnesium | 1.2 | — |
| Mercury | Not detected ug/L | 2 ug/L |
| Selenium | Not detected ug/L | 50 ug/L |
| Sodium | 3.9 | — |
| Thallium | Not detected ug/L | 2 ug/L |
| Total Coliform | 0 % | — |
| Alachlor | Not detected ug/L | 2 ug/L |
| Carbofuran | Not detected ug/L | 40 ug/L |
| Carbon Tetrachloride | Not detected ug/L | 5 ug/L |
| Chlordane | Not detected ug/L | 2 ug/L |
| Chlorobenzene | Not detected ug/L | 100 ug/L |
| Chromium | Not detected ug/L | 100 ug/L |
| Dinoseb | Not detected ug/L | 7 ug/L |
| Diquat | Not detected ug/L | 20 ug/L |
| Edb | Not detected ng/L | 5000000 ng/L |
| Endothall | Not detected ug/L | 100 ug/L |
| Endrin | Not detected ug/L | 2 ug/L |
| Glyphosate | Not detected ug/L | 700 ug/L |
| Heptachlor | Not detected ng/L | 400 ng/L |
| Heptachlor Epoxide | Not detected ng/L | 200 ng/L |
| Hexachlorobenzene | Not detected ug/L | 1 ug/L |
| Lindane | Not detected ng/L | 200 ng/L |
| Methoxychlor | Not detected ug/L | 40 ug/L |
| O Dichlorobenzene | Not detected ug/L | 600 ug/L |
| Oxamyl | Not detected ug/L | 200 ug/L |
| P Dichlorobenzene | Not detected ug/L | 75 ug/L |
| Pce | Not detected ug/L | 5 ug/L |
| Pentachlorophenol | Not detected ug/L | 1 ug/L |
| Picloram | Not detected ug/L | 500 ug/L |
| Styrene | Not detected ug/L | 100 ug/L |
| Tce | Not detected ug/L | 5 ug/L |
| Toxaphene | Not detected ug/L | 3 ug/L |
| Vinyl Chloride | Not detected ug/L | 2 ug/L |
| Alkalinity | 8.3 | — |
| Color | 5 | — |
| Hardness | 45.5 | — |
| pH | 8.1 | — |
| Specific Conductance | 130 | — |
| Temperature | 33 | — |
| TOC | 11 | — |
| Total Dissolved Solids | 90 mg/L | — |
| Turbidity | 1 | — |
| Gross Beta Particle Activity | 1.95 | 0 |
| Atrazine | Not detected ug/L | 3 ug/L |
| Benzene | 11 | — |
| Benzo(a)pyrene | Not detected ng/L | 200 ng/L |
| Dalapon | Not detected ug/L | 200 ug/L |
| DBCP | Not detected ng/L | 200 ng/L |
| Dichloromethane | Not detected ug/L | 5 ug/L |
| Ethylbenzene | Not detected ug/L | 700 ug/L |
| Simazine | Not detected ug/L | 4 ug/L |
| Toluene | Not detected mg/L | 1 mg/L |
What this report doesn't tell you
5 of the 27 contaminants a community water system normally reports do not appear anywhere in Mobile, AL's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
Where your water comes from · EPA SDWIS
Mobile, AL's drinking water comes from surface water, drawn from 3 sources.
Source
- J.B. CONVERSE LAKE · 2
- MOBILE RIVER BUCKS PUMPING STATION
Treatment
- E.M. STICKNEY TREATMENT FACILITY
- H.E. MYERS TREATMENT FACILITY
Distribution
Also buys water from SARALAND, BD OF W&S COMMISSIONERS, SOUTH ALABAMA UTILITIES WATER SYSTEM, and 1 more.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based2 violations on record · most recent Jul 2023resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗